(19)
(11) EP 0 030 469 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.12.1981 Bulletin 1981/50

(43) Date of publication A2:
17.06.1981 Bulletin 1981/24

(21) Application number: 80304413

(22) Date of filing: 05.12.1980
(84) Designated Contracting States:
DE FR GB NL

(30) Priority: 07.12.1979 JP 15955179

(71) Applicant: Matsushita Electric Industrial Co., Ltd.
 ()

(72) Inventors:
  • Isaka, Takenobu
     ()
  • Kobayashi Masaaki
     ()

   


(54) Tracking apparatus


(57) A video tape recorder performs tracking corrections by moving video heads using an electric-mechanical transducer vertically with respect to the scanning direction of video tracks. The video tape recorder measures cycles of synchronizing signals included in reproduced video signals, so that the electric-mechanical transducer shifts the video heads to get regular measuring, thereby allowing the video heads to accurately scan the video tracks.






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